DE202012100777U1 - Plate belt conveyor for extraction plants and transport plates for this - Google Patents

Abstract

Slat conveyor for transporting material in mining and extraction facilities, comprising one of a conveyor chain (11) and of transport plates (20) which are connected to chain links of the conveyor chain, formed endless conveyor (10) which rotates in the conveying operation in two opposing Trumen between two sprockets of which one strand forms a conveying strand (7) and the other strand forms a return strand (8) which are each guided in channel sections of channel elements (2) which, preferably with high tensile strength and limited angular movement, are connected in a row between two of the sprockets and the conveyor chain are arranged by means of the sprocket-deflecting stations (3, 4), characterized in that the transport plates (20) have a chain connection part (30) and a plate part (40) with at least one relative to and connected to the chain connection part (30) Have plate portion, wherein the movable plate portion of Plate part (40) in a discharge area for the material to be conveyed relative to the chain connection part (30) downwardly relative to the running direction of the conveyor chain (11) is pivotable.

Description

The invention relates to a slat conveyor for transporting material in mining and extraction facilities, with one of a conveyor chain and transport plates, which are connected to chain links of the conveyor chain, formed endless conveyor, which rotates in the conveying operation in two opposing Trumen between two sprockets, of which a strand a Förderertrum and the other strand forms a Rücklauftrum, which are each guided in channel sections of channel elements, the tensile strength and preferably limited angularly movably connected in a row between two sprockets receiving and the conveyor chain by means of the sprockets deflecting stations are arranged. The invention also relates to transport plate, in particular for such a slat conveyor for material transport in mining and extraction facilities, with a plate portion as a support plate for the material to be transported and a connection part for attaching the transport plate to a chain link of a conveyor chain.

In underground mining for decades degradation conveyor attached to conveyor chains driving means are used to transport the in with a mining machine, such as a shearer or an extraction planer, on a mining waste in recovered material from the extraction strut and then on a so-called distance conveyor, in particular from a belt conveyor with circulating Rubber bands may consist of throwing off.

For numerous applications, a chain scraper conveyor is used here as a removal conveyor, which is provided with superimposed channel sections, in which the conveyor chain with the connected scraper webs rotate as entrainment means. The upper channel section is then called upper strand and forms the conveying strand, while the lower strand forms the Rücklauftrum. The scratches are usually performed with their scratch ends on profiled side profiles of the gutter element. A disadvantage of this embodiment is that the debris from the mining machine must be transported into the overhead conveyor strand, including in the WO 03/091 541 A1 It has been proposed to attach a loading ramp to the working face side cheek of the gutter element, which is provided with a bend over the height.

Chain scraper conveyors are particularly suitable as mining conveyors for recovery facilities in long-front operation, in which long stretches of 100 to over 400 meters prevail and a wandering expansion, consisting of numerous shielding outbuildings, is used. The expansion fences stand side by side to keep open the buttress area behind a mining front for the mining machine, and by group or alternating advances of the Ausbauschilde advances the expansion with the with each machine run further removed mining front.

For special applications such as short-front dismantling, which is used, for example, for propelling the machine house (cf. DE 1 583 039 ), or if material is to be conveyed with both runs ( DE 914 478 ), it is known not to use the two strands one above the other, but essentially side by side.

For very special applications is already in the DE-PS 914 478 a slat conveyor has been proposed in which trough-like, partially overlapping plates with laterally upwardly curved edges are circulated by means of a conveyor chain. The plates themselves run on guide rollers on both sides of channel elements, wherein the channel forming the conveying channel and the return channel forming gutter elements can be optionally arranged side by side to achieve a particularly low overall height of the conveyor or on top of each other. In an unloading the plates are tilted so that the material from the cover side of the transport plate can slip over an open end between the bent edges. At the unloading station and at the opposite reversing station, the support plates forming the transport plates have to be swung out to the side in a relatively complicated manner relative to the conveyor chain and then set at an angle. However, the apron conveyor only works if the conveyor belt is moved in the discharge area at a sufficient height, for which purpose the carrying plates leading channels are raised by means of elevating supports.

The object of the invention is to provide a particularly flat-built plate belt conveyor with low loading height.

To solve this problem is proposed for a slat conveyor according to claim 1, that the transport plates have a chain connection part and a plate member having at least one plate portion which is connected relative to the chain connection part movable therewith, wherein the plate portion in a discharge area for the material to be conveyed relative to Chain connection part down with respect to the direction of the conveyor chain is pivotable or fold away. Due to the pivotability of the material moving in particular as a heap movable plate section, the conveyor chain in any position, even quasi-ground, since the movable plate section exclusively after folded down while the chain connecting part in a constant position, and unaffected by the wegkippenden plate portion of the transport plate, rotates in the groove or on the sprocket. This also relieves the chain connection part or the respective sprocket.

According to a particularly advantageous embodiment, a guide means for the movable plate portion is arranged in the discharge area, with which the plate portion in the outlet region of the discharge area is moved back upwards. It is particularly advantageous if the guide means extends in the inlet and outlet region of the discharge area and leaves on the inlet side a sudden folding away of the plate portion down. The abrupt folding away of the plate section on which the material to be conveyed usually rests as a heap, improves the delivery of the conveyed material in the discharge area and prevents larger amounts of material on the cover side of the preferably flat plate section or stick.

In principle, the discharge area could also be arranged in the longitudinal region of the conveying run or the return run. In mining and extraction facilities, however, usually one of the stations is designed as a discharge station, which thus forms the discharge area, wherein preferably the guide means is arranged such that a pivoting back and forth of the movable plate portion is completed before the chain connection part of the transport plate by means of the sprocket was deflected by 180 °. It is also advantageous if one of the stations is provided with a tensioning device for changing the distance between the sprockets. In particular, in such an embodiment, it makes sense to use the changeable by means of the clamping device sprocket as a pure guide wheel, while preferably arranged in the discharge station sprocket, the motor-driven sprocket for moving the conveyor, i. of conveyor chain and transport plates, forms.

In order to prevent material from adhering to the cover side of the transport plate, a spraying system with at least one nozzle for directing a gas or liquid jet against a cover side of the movable plate section of the transport plate can be arranged in the discharge area.

The above object is achieved in particular by a transport plate for a slat conveyor for material transport in mining and extraction device in which the transport plate has a plate member which is connected at least with a plate portion relative to the chain connector part movable with the chain connector part and in a discharge area for promoting Material relative to the chain connector part down, preferably about a horizontal axis, is pivotable. The design of the transport plates with plate section pivotable relative to a chain connection part is particularly advantageous if the chain connection part or a plate section fixedly connected thereto laterally delimits an otherwise substantially flat plate part or plate section for transporting the aggregate to a longitudinal side pointing in the longitudinal direction. The movable plate portion is thus hinged on one side of the chain connector so that the entire movable plate portion, or the entire plate member, down, usually about a horizontal axis, pivoted or tilted.

According to an embodiment of corresponding conveyor plates for plate belt conveyor, the plate part between the movable plate portion and a fixedly bolted to the chain connector part or clamped plate portion having a built-in plate member hinge portion. Such a solution can be achieved, for example, by means of a hinge section designed as a film hinge; For this purpose, e.g. the entire transport plate made of a suitable plastic with sufficient toughness, wherein by longitudinal grooves as a partial weakening, preferably at the bottom of the hinge portion, such a film hinge is formed. The film hinge can, in particular in sandwich construction of the transport plate, also consist of a central layer with suitable flexibility, which is exposed in the hinge portion to coatings or cover plates, which rigidly rigidify in particular the movable and the material transporting plate portion.

According to an alternative embodiment of a transport plate for a slat conveyor, the movable plate member or plate portion may be provided with a first hinge assembly and the chain connector or plate portion bolted to the chain connector with a second hinge assembly for hingedly connecting the plate member and the chain connector via the hinge assemblies. In this embodiment, it is particularly advantageous if a sealing lip is provided which covers or overlaps the hinge arrangements and preferably extends over the length of the transport plate in the direction of travel. This not only protects the hinge assemblies from ingress of contaminants and especially debris, but the sealing lip prevents at the same time that material during transport in the delivery run enter into a chain channel within the channel elements and insofar can lead to blockages of the conveyor chain within the chain channel.

According to a further embodiment may be arranged between the movable plate member or plate portion and the chain connection part, a spring arrangement, in particular a the plate member or plate portion biasing in a horizontal orientation restoring device for the movable plate portion, wherein the spring arrangement preferably comprises a plurality of springs, one of which with a spring end on Board member and is secured with its other spring end to the chain connector part and causes the movable connection between the plate member and chain connector part, while another spring is disposed between these parts and the down flaps builds up a restoring force.

For all embodiments of the transport plates or its Plattenbandförderers is particularly advantageous if the Kettenanschlus part is preferably designed as a substantially rectangular lateral surface having Kettenkloben with several parallel to the direction lying, angularly offset guide surfaces, with which the Kettenkloben in a chain channel of the channel elements preferably torsion-free is feasible. The chain connecting part may be formed according to an advantageous embodiment as a multi-part chain block with at least two mutually connectable to a horizontally extending dividing plane cradle parts for tensile holding a horizontal chain link of the conveyor chain between the body parts. By loosening the two clamp halves from each other, the entire transport plate can then be released from the conveyor chain. In such a configuration is particularly advantageous if the lower part of the body has a bottom plate with transverse edges oriented obliquely to the direction of travel. The bottom plate then forms as a rule one of the guide surfaces with which the chain block is supported at the bottom at a bottom of the channel elements and the transverse edges are used in the manner of a dozer blade to herauszuschieben any in the chain channel penetrating material from the chain channel again.

In the embodiment with two bunk parts is particularly advantageous if these plate plate side are provided with Anschraubgewindelöchern for releasably securing a dividing plane cross-head plate on which, depending on the design of the transport plate, a plate portion or a hinge assembly can be fastened or attached. The top plate preferably extends over the length of the transport plates in order to protect the chain channel against the ingress of chunks of material and at the same time be able to arrange the hinge arrangement or the hinge section over almost the entire length of the transport plate in the direction of travel. In a the two body parts cross head plate is additionally ensured that a connecting screw or the like. is relieved for connecting the two body parts together in operational use.

In order to improve the ejection of the material to be transported in the discharge area, it is particularly advantageous if the plate section has an upper side which consists of plastic, preferably with suitable adhesion-reducing properties, or which consists of a plastic layer forming a wear protection or an attached plastic plate. In addition to a reduction in adhesion, the coating of the upper side can also form a wear protection for the movable plate section, over which the previously transported, partially highly abrasive material slips off in the discharge area. As already explained above, in particular in a design with a film hinge, the plate part can be constructed in a sandwich construction. But even in a hinged hinge construction, sandwich construction with e.g. screwed cover and lower plates improved continuous operation can be achieved. Since the transport plates slide with their underside on the channel bottom of the strands, at least the movable plate portion should have a provided with a wear layer or sliding plate bottom. Instead of a sliding plate and sliding strips can be attached to the bottom, in particular in an oblique orientation to the running direction, preferably in a V-shaped or wedge-shaped arrangement to push away lying on the channel bottom of the dream lying material transversely to the direction outward from the channel elements.

Further advantages and embodiments of a plate belt conveyor according to the invention and of transport plates which are particularly advantageous for this purpose will become apparent from the following description of several embodiments shown by way of example in the drawings. In the drawing show:

1 in plan view a slat conveyor according to a preferred embodiment of the invention;

2 in a perspective view of the discharge station of the plate belt conveyor 1 ;

3 in a perspective view of a transport plate according to a first embodiment;

4 the transport plate off 3 in side view and with pivoted down panel part;

5 the transport plate off 3 in side view in section;

6 the transport plate off 3 in view from behind;

7 a transport plate in side elevation in section according to a second embodiment;

8th a transport plate in section in side view according to a third embodiment;

9 a perspective view of a transport plate according to a fourth embodiment with indicated chain links;

10 in a vertical section of the chain connector part and a portion of the plate member in the transport plate after 10 ;

11 the transport plate off 9 in side view and with pivoted transport plate; and

12 in a perspective view of a transport plate according to a fifth embodiment in view of the underside.

In 1 is in total with reference numerals 1 an inventive slat conveyor shown schematically simplified. The slat conveyor 1 has in the embodiment shown four mutually identically constructed channel elements 2 on, preferably tensile and limited angularly movably connected in a row between a discharge station 3 and a diverter 4 are arranged. The length of the slat conveyor 1 could by means of additional channel elements 2 be extended to lengths of for example 50 meters and more. A mining machine, not shown, along the apron conveyor 1 which is a driving stick to the in 1 overhead back, in mining often referred to as offset side, and on the degraded material front facing lower front another machine lane 6 is provided, on which support the mining machine and can lead. For the transport of the mined with the mining machine at the mining front material, the slat conveyor 1 a total with reference numerals 10 designated funding on which, as in particular 2 easy to recognize, from transport plates 20 as well as a conveyor chain 11 consists of interlocking vertical links 12 and horizontal chain links 13 is composed. The transport plates 20 are at regular intervals on the conveyor chain 11 connected, and with the transport plates 20 can dismantled material as a heap to one by means of the discharge station 3 formed discharge area, as will be explained, transported and transferred to another means of transport. The funding 10 with the connected transport plates 20 runs in the slat conveyor 1 in the direction L in two so-called dreams around, namely abboustoßseitig in a conveying strand 7 to which the transport plates 20 , as the 1 and 2 are clearly visible, are open at the top and from the gutter elements 2 are largely not covered, and offset side in a Rücklauftrum 8th , this return strand 8th by means of sections of the gutter elements 2 completely covered, but by means of removable inspection plates 9 is accessible. The conveyor belt 7 of the subsidy 10 will, how 2 easy to recognize, abbaustoßseitig only one flush with the top of the transport plates 20 final ramp 14 limited, whereby material won over the ramp 14 on the transport plates 20 can be deferred.

To compensate for chain tension and in particular suspension chain is the deflection 4 a clamping device formed here by a hydraulic cylinder 15 associated with the distance of a sprocket 16 in the discharge station 3 and a second, just over its pivot 17 indicated sprocket in the diverter station is changeable. The sprocket 16 in the drive station 3 can by means of the drive motor 18 powered by the conveyor 10 the slat conveyor 1 to rotate in the direction L and thereby the individual transport plates 20 circulating through the conveyor belt 7 , the drop-off station 3 , the return strand 8th and the diverter 4 to move.

In the slat conveyor 1 has each transport plate 20 on the one hand on a horizontal chain link 13 connected chain connector 30 and on the other hand, a plate part 40 on, with the chain connector part 30 and the plate part 40 are so interconnected that, as this is especially good 2 on the transport plates 20 in the area of the sprocket 16 reveals the plate part 40 im by means of the discharge station 3 folded ejection area fold down or can swing away while the transport plate 20 with the associated sprocket 16 is deflected by 180 ° in the Rücklauftrum. By this preferably abrupt folding away of the plate member from a horizontal or bank-parallel position in an inclined position that normally on the plate part 40 the transport plates 20 lying heap to a lower conveyor or the like. be handed over. To a correspondingly downwardly pivoted plate part 40 , as in 2 shown in the outlet area of the discharge station 3 is to raise back to the ground level in Rücklauftrum is in the outlet area, located in 2 at the rear of the slat conveyor 1 is a guide 19 as a suitable rail arranged such that from a certain reached arc angle on the sprocket 16 the plate part 40 a transport plate 20 is raised again upwards, relative to the running direction, in order to return to the horizontal or bank-parallel position before reaching the return run. Also in the inlet area is a guide 19A arranged, which serves on the one hand, during a movement of the conveyor 10 nevertheless the transport plates are contrary to the usual running direction 20 to raise the level in the conveying strand and on the other serves, the plate part 40 support such that it folds as suddenly as possible down when a certain arc angle is exceeded, to the sliding down of the plate with the part 40 to support moving material. By means of a scraper 60 can additionally still on the cover side of the plate part 40 discarded material are stripped off. About a very schematically arranged spraying system 61 with nozzles not shown in detail, in addition, a gas or liquid jet on the top side of the plate member 40 be directed to additionally blow off accidentally left material through the beam. A spraying system 61 can also be used without scrapers.

Reference is now made to the 3 to 6 in which a first embodiment of a transport plate 120 is shown in detail. At the transport plate 120 is the chain connector 130 with the plate part 140 via a first plate-part-side hinge arrangement 141 and a second chain-connection part-side hinge assembly 131 connected with each other. In total there are two pairs of hinge arrangements 131 . 141 over the length of the transport plate 120 arranged distributed. At the transport plate 120 forms the entire plate part 140 a movable plate section.

Through the hinge-like connection of the chain connection part 130 and the plate part 140 can the plate part 140 as this is especially good 4 shows, between a substantially horizontal position and a downwardly angled position swing freely, provided the bottom 140 ' of the plate part 140 not supported. As 5 good is the plate part 140 constructed in several parts or sandwich and includes a center plate 142 , at the multiple hinge parts of the hinge assembly 141 are aligned in alignment with the pivot axis S welded. Two hinge parts each of the hinge arrangement 141 and a hinge portion of the hinge assembly positioned therebetween 131 form a pivoting hinge with a suitable bolt. The top of the plate part 140 is with a strong wear layer 143 provided and below the center plate 142 is a floor plate 144 dismantled screwed. The cover layer 143 Although also forms a wear protection, but preferably serves an improved slippage of the debris at tilt of the plate member 140 and consists of a suitable plastic with adhesion-reducing additives. The bottom plate 144 serves as wear protection and should have improved sliding properties, since the bottom plate 144 over the entire length of the conveying run and also the return run at a further not shown gutter bottom of the gutter elements rests. In particular, in the conveying strand can due to the on the plate part 140 resting heap high wear on the underside of the transport plates 120 occur. The interchangeability of the bottom plate 144 By means of the fittings therefore allows a renewal of the most stressed areas on the plate part 140 every transport plate 120 ,

The chain connection part 130 is constructed in several parts and has in particular a very strong chain block 132 which is essentially a rectangular basic shape with an upper part of the crown 133 and a lower part of the body 134 has that by means of a central screw 136 relative to a horizontal division plane 135 are releasably connected to each other. In the 5 well-recognizable recesses 177 at the bottom of the Klobenoberteils 133 serve for tensile strength receiving a horizontal chain link, which between the two detachable parts of the cudgel 133 . 134 can be inserted. The upper part of the crown 133 makes with its top 133 ' a guide surface, that of another guide surface 134 ' at the bottom of the lower part of the crown 134 lies parallel opposite. Another guide surface is from the backsides 133 '' . 134 '' the body parts 133 . 134 of the chain block 132 educated. The latter is again a fourth guide surface 137 ' opposite, from the front of a headstock 137 is formed, which has screw connections both on the upper part of the crown 133 as well as the lower part of the crown 134 detachably screwed on and in so far for an additional stiffening of the multi-part chain block 132 provides. The upper corner of the headstock 137 is with a bevel 138 provided with the chain block 132 additionally can still lead to a counter-slope within the chain channel in the channel elements of the plate conveyor. In the exemplary embodiment shown, the chain block side hinge arrangements 131 at the lower transverse edge of a beam 139 welded, with the top plate 137 is releasably bolted. Both the bar 139 as well as the headstock 137 extend as if from 3 is clearly visible over the entire length of the transport plate 120 in the direction of travel, and the beam 139 is still in front of the top plate 137 a sealing lip 147 by means of a retaining strip 148 attached, which is the heap receiving the plate portion of the plate member 140 the transport plate 120 chain channel side both in the normal state, as in 5 shown, as well as in the folded state, as in 4 indicated, limited. At the same time covering the sealing lip 147 the hinge arrangements 131 . 141 and regardless of the folded state, it prevents larger chunks of material, the pivoting movement, in particular the back pivoting movement of the plate member 140 prevent.

7 shows a second embodiment of a transport plate according to the invention 220 , The chain connection part 230 has almost the same structure as in the previous embodiment with chain clamps 232 , with upper part of the crown 233 and lower part of the body 234 for tension-resistant mounting of a horizontal chain link and with a abboustoßseitig bolted, both body parts 233 . 234 additionally interconnecting detachable top plate 237 , The plate part 240 has integrally a first plate portion 242 on which the material is stored and transported, a second integrally on the plate part 240 trained plate section 245 that by means of a bar 239 firmly on the top plate 237 screwed on, and a hinge section 241 which is built here in the manner of a movie hinge. To achieve the film hinge were on the outside of the plate part 240 Longitudinal grooves attached to the otherwise rigid plate part 240 in the area of the hinge section 241 so weaken that the plate section 242 by about 90 ° relative to the second plate section 245 can be bent over. The entire plate part 240 preferably consists of a suitable plastic plate with reasonably good sliding properties with sufficient wear protection and sufficient tensile strength and flexibility in the region of the hinge section 241 , The plate part 240 could also be constructed in sandwich construction and accordingly have a coating on the cover layer with adhesion-reducing additives and a coating on the underside with wear protection. Also the hinge section 241 could be formed in various ways to form a film hinge or integrated hinge.

The 8th shows a third embodiment of a transport plate 320 with a chain connection part 330 and a movably connected and downwardly foldable plate member 340 , As in the previous embodiment is also in the transport plate 340 a hinge section 341 in the plate part 340 integrated between a first panel section 342 on which the pile is transported and the relative to the connecting part 330 is movable, and a second plate section 345 is arranged, by means of a clamping bar 339 in a recess on the underside of the top plate 237 is trapped. The free longitudinal edge of the second plate section 345 is this in the illustrated embodiment with a terminal block 349 provided between bars 339 and header 337 is trapped. As in the previous embodiments, there is also the chain connector 330 from a chain block 332 with Klobenoberteil 333 and cock bottom 334 , in the 8th only partially cut are shown which also the screw joints between the top plate 337 and the bunk parts 333 . 334 can be seen. The plate part 340 is preferably carried out in sandwich, with only one central layer 348 Made of suitable material, the hinge section 341 and the second plate portion 345 forms while in the first panel section 342 on this middle layer both a cover layer 343 as well as a bottom layer 344 is applied with the respective desired properties. Because the middle layer 348 just make sure that the longitudinal forces on the chain connector part 330 in the plate part 340 be transmitted, and during the folding away the weight of the plate member 340 to hold, exist for the design of the middle layer 348 most varied constructive solutions. Im in 8th In the embodiment shown, the plate sections extend 345 only partially over the length of the plate part 340 , In order to prevent in this embodiment that material penetrates into the chain channel or the folding area, in addition, a sealing strip 347 on the beam 339 screwed on, which in turn firmly with the head plate 337 connected is. Also the head plate 337 has a slope in addition to the respective guide surfaces 338 for cooperation with a counter-slope on the channel elements of the slat conveyor.

The 9 to 11 show a third embodiment of a transport plate 420 with only very simplified illustrated Kettenanschlussteil 430 , with a horizontal chain link 13 the conveyor chain 11 connected is. The chain connection part 430 here preferably consists of a one-piece chain block 432 in which the tensile and shear forces by means of the end faces of the straps of the vertical chain links 12 be initiated. At the chain block 432 is a crossbar 451 formed on the one extending over the entire length of the transport plate 420 extending header 437 screwed on. The header 437 again has on its rear side two rearwardly projecting connecting lugs 462 which are positioned so that they are in the space between two horizontal chain links 13 protrude. Both noses are with a hole 465 provided and on both noses 462 is in each case the upper end of a hole through the spiral spring 473 a spring arrangement 470 by means of a cross pin 463 attached. The spiral spring 473 passes through the interior of an outer, powerful coil spring 472 , with its upper end against the underside of the nose 462 create and support there. While the outer coil spring 472 in the rear region from above against the rear plate portion of the plate member 440 press, including, if necessary, recesses in the region of the rear longitudinal edge of the plate portion 440 can be formed, is the inner coil spring 473 by means of a second transverse pin 464 in recesses 466 in the transport plate 440 anchored. The inner spiral spring 473 ensures pivoting suspension of the plate part 440 at the chain connection part 430 and thus also for the vertical pivoting mobility between the chain connection part 430 and the plate part 440 , She stands under heavy tension and ensures sufficient preload, so that the plate part 440 while essentially around the lower cross pins 464 can pivot, but its altitude in the rear longitudinal edge region of the plate member 440 maintains. If now the transport plate 420 enters the discharge area and is no longer supported by guides from below, ensures that the filling weight of the heap on the loaded plate portion of the plate member 440 for that the plate part 440 swings down. Here, however, a restoring force in the outer spring 472 the spring arrangement 470 constructed, which counteracts the folding in any case, when all debris has slid off the plate part down. About the choice of different springs 472 . 473 On the one hand a good pivoting mobility and on the other hand, a smooth return movement can be adjusted.

In the 12 shown transport plate 520 has, similar to the embodiment according to the 3 - 6 , Hinge arrangements with hinged hinge parts 541 at the rear edge of the plate part 540 the transport plate 520 and a chain connector side hinge band member 531 which is over a beam 539 with a header 537 connected with both parts of the cudgel 533 . 534 of the chain connection part 530 connected is. 12 makes it particularly easy to see that the headband 537 over first screw connections 590 with the lower part of the body 534 and over second glands 591 also with the upper part of the crown 530 connected, while the two body parts 533 . 534 over another screw 592 connected to each other. The lower part of the body 534 has a strong bottom plate 555 on, whose transverse to the direction aligned transverse edges 556 from the back of the chain block 532 V-shaped at an angle to each other towards the top plate 537 extend, so that by the oblique orientation a clearing effect is achieved with which inadvertently in the chain channel of the channel elements, in which the body part 543 is guided torsion-free, penetrated material is pushed forward. A similar clearing effect is also by means of Gleitleisten 559 achieved in an oblique orientation to the direction of the bottom of the plate member 540 are arranged and on which the plate part 540 within the strands rests on the channel bottom of the channel elements. The V-shaped oblique arrangement of the sliding strips 559 causes a clearing action, is transported with the material at the bottom of the gutter elements to the outside, even if the direction is changed or the funding is briefly moved in the opposite direction, for example, a block o. The like. To solve. The two wear strips 559 preferably at the free edge of the plate part 540 a sufficient distance from each other, so that in the gusset between two wear strips 559 no material can accumulate. The front sides of the sliding strips 559 are preferably sharp-edged to improve the Räumwirkung. Through narrow-band wear strips 559 may be the wear on the actual plate part 540 the transport plate 520 be reduced. An additional advantage is the significantly reduced contact surface, which by means of the sliding strips 559 achieved, and the same existing increased surface pressure between the sliding strips 559 and the gutter floor, as this is a self-cleaning of the conveyor trough despite the folding ability of the plate part 540 additionally improved.

In the folded-down position of the plate member, the debris can slip well down through the abruptly taken inclined position, possibly by a. stop caused by the guide can still be generated an additional pulse to release the transported material. The movable plate portion is flat in all embodiments and flat and at least formed on three sides without lateral elevations.

Those skilled in the art will recognize from the foregoing description numerous modifications which are intended to be within the scope of the appended claims. It is understood that in particular the guide means could be mounted in various ways.

The different embodiments show a possible structure of the respective transport plates. As explained in the description of the figures, additional coatings can be applied and the plates can be made of a wide variety of materials.

Also the chain block, especially in the multi-part or ,. Sandwich-like design may, in particular on the underside and / or back, be provided with coatings as wear protection or to reduce friction. All At the same time, coatings ensure that there is also improved corrosion protection.

On the underside, sliding or Schleißleisten o. The like. Can be attached instead of coatings, which may form the only contact surface with the channel element. The invention is therefore not limited to the embodiment according to the embodiments, which serve only to explain the inventive concept.

The same applies to the design of the hinge section within the transport plates. Such and other modifications are intended to be within the scope of the appended claims, and the embodiment is only for illustration of the invention without limiting the scope thereof.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 03/091541 A1 [0003]
• DE 1583039 [0005]
• DE 914478 [0005, 0006]

Claims (21)

Plate belt conveyor for material transport in mining and extraction facilities, with one of a conveyor chain ( 11 ) and of transport plates ( 20 ), which are connected to chain links of the conveyor chain, formed endless conveyor ( 10 ), which circulates in the conveying operation in two opposing Trumen between two sprockets, of which one strand a Förderertrum ( 7 ) and the other strand a return strand ( 8th ), which in each case in gutter sections of gutter elements ( 2 ) are guided, which, preferably tensile and limited angularly movable, connected in a row between two the sprocket receiving and the conveyor chain by means of the sprockets deflecting stations ( 3 . 4 ) are arranged, characterized in that the transport plates ( 20 ) a chain connector ( 30 ) and a plate part ( 40 ) with at least one relative to the chain connection part ( 30 ) movable and connected to this plate portion, wherein the movable plate portion of the plate member ( 40 ) in a discharge area for the material to be conveyed relative to the chain connection part ( 30 ) down with respect to the running direction of the conveyor chain ( 11 ) is pivotable. A slat conveyor according to claim 1, characterized in that in the discharge area a guide means ( 19 ) for the movable plate portion of the plate part ( 40 ) is arranged, with which the movable plate portion in the outlet region of the discharge area is still moved back above. A slat conveyor according to claim 2, characterized in that the guide means ( 19 . 19A ) extends in the inlet and outlet area of the discharge area and the inlet side allows a sudden folding away of the plate portion down. A slat conveyor according to claim 1, 2 or 3, characterized in that one of the stations as a discharge station ( 3 ) is formed, which forms the discharge area, wherein preferably the guide means ( 19 ) is arranged such that a pivoting back is completed before the chain connector ( 30 ) of the transport plate ( 20 ) by means of the sprocket ( 16 ) was deflected by 180 °. A slat conveyor according to one of claims 1 to 4, characterized in that one of the stations ( 4 ) with a tensioning device ( 16 ) is provided for changing the distance of the sprockets. Plate belt conveyor according to one of claims 1 to 5, characterized in that in the discharge area a Bedüsungssystem ( 61 ) with at least one nozzle for directing a gas or liquid jet against a cover side of the movable plate portion of the plate member ( 40 ) is arranged. Transport plate for a slat conveyor in particular according to one of claims 1 to 6 for material transport in mining and extraction facilities, with a connection part ( 30 ) for fastening the transport plate ( 20 ) on a chain link of a conveyor chain, characterized in that the transport plate ( 20 ) a plate part ( 40 ), which at least with a plate portion relative to the chain connecting part ( 30 ) movable with the chain connection part ( 30 ) and in a discharge area for material to be conveyed relative to the chain connection part ( 30 ) is pivotable or fold away. Plate conveyor according to one of claims 1 to 6 or transport plate according to claim 7, characterized in that the chain connection part ( 30 ) or one with the chain connector ( 230 ) firmly connected plate section ( 241 . 245 ) the plate part ( 240 ) laterally bounded on a longitudinal side facing in the running direction. Plate belt conveyor or transport plate according to one of claims 1 to 8, characterized in that the plate part ( 240 ; 340 ) between the movable plate section ( 242 ; 342 ) and one fixed to the chain connector ( 230 ; 330 ) screwed or clamped plate section ( 245 ; 345 ) one in the plate part ( 240 ; 340 ) integrated hinge section ( 241 ; 341 ) having. A slat conveyor or transport plate according to one of claims 1 to 8, characterized in that the movable plate section or plate part ( 140 ) with a first hinge arrangement ( 141 ) and the chain connector ( 130 ) or a fixedly bolted to the chain link part plate portion with a second hinge assembly ( 131 ) for the hinged connection of plate section or plate part ( 140 ) and chain connector ( 130 ) by means of the hinge arrangements ( 131 . 141 ) are provided. A slat conveyor or transport plate according to claim 10, characterized by one of the hinge arrangements ( 131 . 141 ) covering or cross-over, preferably over the length of the transport plate extending sealing lip ( 147 ). A slat conveyor or transport plate according to any one of claims 1 to 9, characterized in that between the movable plate section or plate part ( 440 ) and the chain connection part ( 430 ) a spring arrangement ( 470 ) with several springs ( 472 . 473 ) is arranged, preferably a spring ( 473 ) the movable connection between plate part ( 440 ) and Chain connector ( 430 ) and the further spring ( 472 ) forms a restoring device and with a spring end on the plate part ( 440 ) and with its other spring end on chain link part ( 430 ) is present. Plate belt conveyor or transport plate according to one of claims 1 to 12, characterized in that the chain connection part ( 130 ; 230 ; 330 ) as preferably substantially a rectangular lateral surface having Kettenkloben ( 132 ; 232 ; 332 ) with a plurality of parallel to the running direction, angularly offset guide surfaces ( 133 ' . 134 ' . 133 ' . 137 ' ) is formed, with which the chain block in a chain channel of the channel elements can be guided without twisting. Plate belt conveyor or transport plate according to one of claims 1 to 13, characterized in that the chain connection part ( 130 ) as a multi-part chain block with at least two on a horizontally extending dividing plane connectable to each other body parts ( 133 . 134 ) for the tensile strength of a horizontal chain link of the conveyor chain between the body parts ( 133 . 134 ) is trained. A slat conveyor or transport plate according to claim 14, characterized in that the lower body part ( 534 ) a bottom plate ( 555 ) with transversely oriented to the direction transverse edges ( 556 ) having. Plate belt conveyor or transport plate according to claim 14 or 15, characterized in that both body parts ( 133 . 134 ; 233 . 234 ) on the plate part side with Anschraubgewindelöchern for releasably securing a dividing plane cross-head plate ( 137 ; 237 ) to which a plate portion or a hinge assembly is attachable or fixed. A slat conveyor or transport plate according to claim 16, characterized in that the head plate ( 137 . 237 . 337 ) over the length of the transport plates ( 120 . 220 . 320 ). Plate belt conveyor or transport plate according to one of claims 1 to 16, characterized in that at least the plate portion has an upper surface which consists of plastic or consists of a wear protection forming and / or for an adhesion-reducing plastic layer. Plate belt conveyor or transport plate according to one of claims 1 to 17, characterized in that the plate part and / or the chain connection part is constructed in sandwich construction. A slat conveyor or transport plate according to one of claims 1 to 17, characterized in that the movable plate section or the plate part ( 140 ; 340 ) one with a wear layer or sliding plate ( 144 ; 344 ) has provided underside. A slat conveyor or transport plate according to any one of claims 1 to 18, characterized in that the movable plate section or the plate part ( 540 ) on its underside with preferably obliquely to the direction, in particular V-shaped, arranged Gleitleisten ( 559 ) is provided.

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